320213000 has 32 divisors (see below), whose sum is σ = 749300760. Its totient is φ = 128084800.

The previous prime is 320212987. The next prime is 320213017. The reversal of 320213000 is 312023.

It can be written as a sum of positive squares in 4 ways, for example, as 17522596 + 302690404 = 4186^2 + 17398^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159107 + ... + 161106.

Almost surely, 2^320213000 is an apocalyptic number.

It is an amenable number.

320213000 is an abundant number, since it is smaller than the sum of its proper divisors (429087760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320213000 is a wasteful number, since it uses less digits than its factorization.

320213000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320234 (or 320220 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 320213000 is about 17894.4963606132. The cubic root of 320213000 is about 684.1421053766.

Adding to 320213000 its reverse (312023), we get a palindrome (320525023).

The spelling of 320213000 in words is "three hundred twenty million, two hundred thirteen thousand".